Improvement in grading-plows



A. PQHOPKINS.

Improvement in. Grading-Piows. V

N0. 127,239, 1 ,PatentelMay 28,1872.

WW2 @MY f ATENT OFFICE.o

ADAM I. HOPKINS, OF BENTLEYVILLE, PENNSYLVANIA.

IMPRovl-:MENT IN GRADING-FLOWS.

Specification forming part of Letters Patent No. 127,239, dated May 2S,1872.

Specification describing anew and Improved Grading-Plow, invented byADAM I. HOP- KINs, of Bentleyville, in the county of Washin gton andState of Pennsylvania.

My invention consists in a triangular gradin gor scraping-plow withcertain attachments, whereby it may be readily shifted to turn to theright or left, or to turn both ways alike, without requiring to beturned over, as some have heretofore been.

Figure l is a side elevation oi' my improved grading-plow. Fig. 2 is aplan view; and Fig. 3 is a plan of the bottom.

A A represent the two sides of a triangular scraper, and B the base. Cis a long bar, pivoted to the scraper at the apex of the inner angleformed by the two sides, and extending i draft-chain, adapted to behooked by one-endl to one of said hooks, and at the other to the apex ofthe plow at G. If it be desired to turn the earth to the right, thechain will be hooked onto the right side, as shown, andthe bar C will beadjusted to the left.- This will, owing to the chain beingrightly adjusted as to length, hold the plow in the position indicated in Fig.Z-that is, with the side A in the line of the draft, and the side Athrowin g out to the ri ghtand by reversing the chain and bar C the plowwill turn the furrowto the left in like manner.

To have the plow turn both ways, the chain' will not be engaged witheither hook E, and

The improved triangular grading-plow A A B, with chain F, hooks E, barC, and guiding-wheel H, all combined and arranged substantially asspecied.

. ADAM P. HOPKINS.

Witnesses A. J. BUFFINGTON, JOHN HOLLAND, Sr.

